63results about How to "Change the speed of movement" patented technology

The invention discloses a flexible pectoral fin swing type underwater bionic robot, consisting of a left swinging component, a right swinging component, a tail swinging component, a supporting component, a left flexible wing and a right flexible wing; the left flexible wing has the same structure with that of the right flexible wing, the two wings are symmetrically assembled by taking the longitudinal axis as a center to form a flexible body, the left swinging component, the right swinging component, the tail swinging component and the supporting component are arranged inside the flexible body, and an air supply is arranged outside the flexible body; the supporting component is arranged along the longitudinal axis, the left swinging component and the right swinging component are respectively arranged at the left side and the right side of the supporting component, and the tail swinging component is arranged at the rear end of the supporting component; and the left swinging component has the same structure as that of the right swinging component. The bionic robot adopts the external air supply to drive pneumatic artificial muscles, so as to realize moving forwards, turning and heave movement of the bionic robot in water.

The invention discloses a medlar picking machine, and belongs to the technical field of medlar picking. The medlar picking machine comprises a support frame assembly, a collecting assembly and a vibration assembly, and has the following connection relationship that a support frame B of the collecting assembly is movably connected with a support frame A of the support frame assembly through a lifting oil cylinder, and the movable connection of the collecting assembly and the support frame assembly is formed; in addition, the support frame B is positioned inside a cavity formed by the support frame A, and the strip-shaped gap of a bottom plate of the support frame B is placed along the X-axis direction; a vibration frame plate of the vibration assembly is glidingly connected with the support frame B of the collecting assembly through a double-rolling-wheel structure, and the movable connection of the vibration assembly and the collecting assembly is formed; in addition, the vibration frame plate can slide on the support frame B along the X-axis direction. The medlar picking machine has the advantages that through a multi-point uniform distribution vibration swinging type fully automatic picking mechanism, the picking efficiency is improved, the thorough picking rate of fresh medlar fruits is high, in addition, only ripe fruits are harvested in the operation process, and unripe fruits cannot be damaged.

The invention discloses a nanofluidic chip, a processing method based on atomic force microscopy (AFM), and application. Each of two ends of the chip is provided with a liquid storage tank; each liquid storage tank is connected with a micron pipeline; a nano pipeline is arranged between two micron pipelines; and electrodes which are vertical to the pipelines are arranged on two sides of the nano pipeline. The nano pipeline which is communicated with the micron pipelines is processed by using an AFM probe. Certain voltage is applied between the liquid storage tanks of the chip, small voltage is applied to the electrodes on two sides of the pipelines simultaneously, and the change of a current signal is measured; and when an object flows through the electrodes in the nano pipeline, current changes, and signal detection can be used for analyzing the structural and physical characteristics of a nano material. Processing and signal detection methods for the nanofluidic chip can applied to low-cost and quick sequencing of deoxyribose nucleic acid (DNA) molecules.

The invention provides a liquid type plasma device for treating tumors and skin diseases, which uses common water and a magnetic field to act under specific conditions, and utilizes the magnetic fieldwith vortex type magnetic lines of force to convey electron beams generated by one plasma electrode to the other plasma electrode to form a loop; therefore, substances dissolved in common water are impacted by electrons to generate various different plasmas, so that surface and deep treatment can be carried out on a treated object.

The invention relates to a dynamic detection testing machine of a bumper, and the machine provided by the invention comprises a load-bearing track and a test specimen mounting base which is provided with a test specimen mounting foundation and a load sensor. The technical points of the invention is as follows: a bumper test specimen is fixed on the test specimen mounting foundation; the load sensor is arranged between the test specimen mounting foundation and the test specimen mounting base; a distance-measuring sensor and a speed-measuring sensor group are arranged along the horizontal position of the outer end surface of the bumper test specimen; a load testing vehicle and a traction control vehicle which are provided with unhooking heads are arranged on the load-bearing track; and a traction power group is arranged at the end of the load-bearing track which is arranged at one side of the traction control vehicle. The dynamic detection testing machine provided by the invention can be used for actually collecting the data of each main performance of the bumper, provides a scientific basis for safeguard devices such as the scientific, effective and reasonable configuration bumpers and the like of track operating equipment, crane machinery and vehicles and preventing the state property and personal casualty accidents from occurring due to the inaccurate performance index of the bumper.

The invention provides a gear combination transmission mechanism. The mechanism can comprise an input shaft and an output shaft and particularly comprises a sun wheel, a middle shaft, a planet wheel and two transmission assemblies. The sun wheel is fixed to the output shaft, and the middle shaft and the output shaft are arranged at an interval in parallel; the planet wheel is mounted on the middle shaft and meshed with the sun wheel; the two transmission assemblies are configured to enable rotation motion of the input shaft to be converted into the rotation motion of the middle shaft around the output shaft and rotation motion of the planet wheel around the middle shaft; and at least one transmission assembly comprises a non-circular gear pair composed of two meshed non-circular gears, and therefore the instantaneous transmission ratio between the output shaft and the input shaft is changed according to a curve. According to the gear combination transmission mechanism, the transmission direction, the speed and the back-and-forth amplitude of the output shaft can be changed, and the mechanism can be suitable for meeting the requirements and various changes of mechanisms with reciprocating and back-and-forth amplitudes and speed adjusting motion.

The invention discloses a material group distribution detection and regulation system and method in the variable-ellipse equal-thickness screening process. The system comprises a variable-ellipse equal-thickness screen, a screen surface vibration testing and analyzing device, a material group high-speed camera shooting testing and analyzing device and an excitation regulation device, wherein the screen surface vibration testing and analyzing device detects the movement tracks of different areas of the screen surface of the variable-ellipse equal-thickness screen in real time; the material group high-speed camera shooting testing and analyzing device detects the movement speed and spatial distribution of a material group in real time; and the excitation regulation device regulates the excitation parameters of an unbalanced exciter. According to the material group distribution detection and regulation system and method in the variable-ellipse equal-thickness screening process, for different screening operation conditions, the parameters of the unbalanced exciter are regulated through the excitation regulation device according to the real-time online detection results of the screen surface vibration testing and analyzing device and the material group high-speed camera shooting testing and analyzing device so as to change the movement tracks of different areas of the screen surface, then the movement speed and spatial distribution of the material group in the screening process of the variable-ellipse equal-thickness screen are regulated, and variable-ellipse equal-thickness efficient screening of materials under different conditions is achieved.

The invention relates to a two-stage bumper capable of protecting temperature which comprises a head-stage bumper and a tail-stage bumper. The head-stage bumper and the tail-stage bumper respectively comprise respectively a cylinder body of a round barrel body shape, a cylinder body cover is arranged on the opening end of each cylinder body in a sealing mode, a piston rod is movably matched in a center through hole of each cylinder cover in a sealing mode, a piston body assembly is arranged at the right end of each piston rod, suitable for conducting piston motion in each cylinder body, and movably matched with the inner wall of each cylinder body in a sealing mode. The cylinder body of the head-stage bumper forms the piston rod of the tail-stage bumper, temperature sensors are arranged on the right end faces of the piston body assembly of the head-stage bumper and the piston body assembly of the tail-stage bumper, the temperature sensors are suitable for detecting temperature of media and connected with a PLC, a nixie tube is arranged at the outer barrel wall of the two-stage bumper, and the PLC is suitable for displaying the temperature of the media through the nixie tube.

The present invention discloses a magnetic particle regulation and control aggregation system in a space. The magnetic particle regulation and control aggregation system in the space comprises a powersupply module, an on-off control module and a magnetic control device, and output groups of the power supply module supply power to the magnetic control device in a time-dividing, zone-dividing and pressure-dividing manner through the on-off control module; the power supply module comprises polarized power supply units and push power supply units, each corresponding group of polarized coil groupsis respectively provided with the corresponding polarized power supply unit, and each corresponding push coil is respectively provided with the corresponding push power supply unit; and the on-off control module comprises power supply control units and a power supply driving unit, the polarized power supply unit or the push power supply unit both supply power to a polarized coil or a push coil inthe magnetic control device from the power supply control unit, and the power supply driving unit is used for driving on or off of the power supply control units. Beneficial effects are as follows: the magnetic particle regulation and control aggregation system energizes the polarized coil groups and the push coils in each direction, gradually push magnetic particles from corresponding directionsto ta center of a magnetic regulation region, and highly controllably realizes aggregation of the magnetic particles.

The invention discloses a flexible pectoral fin swing type underwater bionic robot, consisting of a left swinging component, a right swinging component, a tail swinging component, a supporting component, a left flexible wing and a right flexible wing; the left flexible wing has the same structure with that of the right flexible wing, the two wings are symmetrically assembled by taking the longitudinal axis as a center to form a flexible body, the left swinging component, the right swinging component, the tail swinging component and the supporting component are arranged inside the flexible body, and an air supply is arranged outside the flexible body; the supporting component is arranged along the longitudinal axis, the left swinging component and the right swinging component are respectively arranged at the left side and the right side of the supporting component, and the tail swinging component is arranged at the rear end of the supporting component; and the left swinging component has the same structure as that of the right swinging component. The bionic robot adopts the external air supply to drive pneumatic artificial muscles, so as to realize moving forwards, turning and heave movement of the bionic robot in water.

The invention relates to the technical field of tea leaf processing, in particular to an air control device for a continuous tea leaf de-enzyming and carding machine. The air control device comprises a rectangular rack, a pot groove mechanism and an air control unit fixedly installed above the rack. The air control unit comprises an air inlet mechanism, a sealed concentric-square-shaped air duct and two or more air distribution mechanisms evenly arranged in the length direction of the concentric-square-shaped air duct, and the upper end of the concentric-square-shaped air duct is covered with a cover plate in a matched mode; the air inlet mechanism comprises an air inlet pipe and a rectangular communicating pipe which communicate with each other. Each air distribution mechanism comprises an air adjusting mechanism and two rectangular air distribution pipes. Each air adjusting mechanism comprises a driving air distributing pipe and two driven air distributing pipes, and one end of the two driven air distributing pipes are connected with the corresponding ends of the driving air distributing pipe through linkage mechanisms. According to the invention, the functions of air direction control, uniform air distribution, moisture removal control, tea leaf de-enzyming and carding processing time control and the like in the continuous tea leaf de-enzyming and carding processing air supply process can be realized.

The invention discloses a nanoscale detection chip. Two liquid storage tanks are respectively arranged on the two ends of the chip, each liquid storage tank is connected with a micrometer pipeline, a nanometer pipeline is arranged between the two micrometer pipelines, and the two sides of the nanometer pipeline are respectively provided with an electrode which is vertical to the nanometer pipeline; and the liquid storage tanks are rectangular, and a plurality of electrodes which are vertical to the liquid storage tanks are arranged on one sides of the liquid storage tanks. The chip can accurately apply current and voltage according to different detection requirements, so that only one group of the electrodes can be prevented from influencing the current when generating the regulation voltage.

The invention discloses a medlar picking machine, and belongs to the technical field of medlar picking. The medlar picking machine comprises a support frame assembly, a collecting assembly and a vibration assembly, and has the following connection relationship that a support frame B of the collecting assembly is movably connected with a support frame A of the support frame assembly through a lifting oil cylinder, and the movable connection of the collecting assembly and the support frame assembly is formed; in addition, the support frame B is positioned inside a cavity formed by the support frame A, and the strip-shaped gap of a bottom plate of the support frame B is placed along the X-axis direction; a vibration frame plate of the vibration assembly is glidingly connected with the support frame B of the collecting assembly through a double-rolling-wheel structure, and the movable connection of the vibration assembly and the collecting assembly is formed; in addition, the vibration frame plate can slide on the support frame B along the X-axis direction. The medlar picking machine has the advantages that through a multi-point uniform distribution vibration swinging type fully automatic picking mechanism, the picking efficiency is improved, the thorough picking rate of fresh medlar fruits is high, in addition, only ripe fruits are harvested in the operation process, and unripe fruits cannot be damaged.

The invention discloses an ocean drill rod connector. The ocean drill rod connector comprises a male connector body and a female connector body. The male connector body and the female connector body are provided with an outer thread and an inner thread which are matched with each other respectively. Both the end, away from the outer thread end of the male connector body, of the male connector body and the end, away from the inner thread end of the female connector body, of the female connector body are provided with tapered circular beads. The tapered circular beads are provided with a plurality of reinforcing ribs of a spiral structure at intervals. Spiral grooves are formed between the adjacent reinforcing ribs. According to the ocean drill rod connector, the reinforcing ribs of the spiral structure and the spiral grooves are arranged on the tapered circular beads at intervals, so that the ocean drill rod connector is high in torsional strength, large in load capacity, evenly distributed in stress and capable of meeting the high torsional requirement of ultra deep drilling of an ocean drill rod; the reinforcing ribs and the spiral grooves further have the advantages that the drilling fluid circulation is accelerated, and the corrosion wear resistance is improved, the ocean drill rod can be prevented from being worn untimely and failed, the service life of the drill rod is prolonged accordingly, the drilling efficiency is improved, the drilling cycle is shortened, and the drilling cost is lowered.

The invention relates to a working method of a two-stage bumper with a temperature protection function, wherein the two-stage bumper comprises a head-stage bumper and a tail-stage bumper. The head-stage bumper and the tail-stage bumper respectively comprise a cylinder body of a cylinder shape, a cylinder cover is arranged on the opening end of each cylinder body in a sealing mode, a piston rod is movably matched in a center through hole of each cylinder cover in a sealing mode, a piston body assembly is arranged at the right end of each piston rod, suitable for conducting piston motion in each cylinder body, and movably matched with the inner wall of each cylinder body in a sealing mode. The cylinder body of the head-stage bumper forms the piston rod of the tail-stage bumper, temperature sensors are arranged on the right end faces of the piston body assembly of the head-stage bumper and the piston body assembly of the tail-stage bumper, the temperature sensors are suitable for detecting temperature of mediaand connected with a PLC, a nixie tube is arranged at the outer cylinder wall of the two-stage bumper, and the PLC is suitable for displaying the temperature of the media through the nixie tube.

The invention relates to the field of engineering, in particular to an automatic wood cover cutting device. According to the device, the wood cover cutting speed can be changed, and the wood cover conveying and collecting speed can be changed. The wood cover cutting device comprises a cutting device, a conveying device, a collecting device and a first belt, a first handle is rotated to drive a second handle to rotate, a second functional column is driven to rotate, a first gear is driven to rotate, a second gear is driven to rotate, then a third connecting rod is driven to rotate, then a supporting rod is driven to rotate upwards or downwards, four upper foot frames are driven to move upwards or downwards, a boss is driven to ascend or descend, the contact position of a first rotating wheel and a sixth rotating wheel is changed, the rotating speed of the first rotating wheel is changed, and the wood cover cutting speed is changed. When the position of a first motor in a base is changed, the rotating speed of a fourth rotating wheel is changed, the speed of a conveying belt is changed, meanwhile, the moving speed of the cutting device and the moving speed of the collecting device are changed, and the cutting effect is changed.

The invention discloses a method for preparing a functionally graded material through pressure filtration forming in a motional magnetic field, which comprises the following steps of: 1) preparing a porous mould; 2) mixing powders different in magnetism with de-ionized water in a certain proportion, and stirring all the materials in a ball mill to form evenly dispersed slurry, and carrying out pouring; 3) applying a motional magnetic field having the magnetic field intensity of 0.1 to 10 T to take effect once or multiple times, and performing pressure filtration filtering; and 4) carrying out drying and sintering forming. The method disclosed by the invention has the following advantages that: graded materials different in composition distribution can be obtained by changing the magnetic field intensity, the speed of motion and the magnetic field acting times; and by employing the mature ceramic pressure filtration forming method, the steps for preparing the functionally graded material are simplified, and the cost is greatly reduced.

The invention provides a liquid plasma device for treating tumors and skin diseases. The device uses ordinary water and a magnetic field to act under specific conditions, and uses a magnetic field with vortex magnetic lines of force to generate electron beams from a plasma electrode and transport it. To another plasma electrode, a circuit is formed; thus, the substances dissolved in ordinary water are impacted by electrons to generate various types of plasma, so that surface and deep treatment can be performed on the treated object.